https://www.gutefrage.net/frage/e-scooter-tuning-geldstrafe

Tuning an e-scooter, particularly to exceed the legal speed limit of 20 km/h in Germany, carries significant legal risks, including substantial fines, driving bans, and even potential imprisonment for offenses like driving without insurance or a license. While some e-scooters might inherently reach slightly higher speeds (e.g., 22 km/h due to manufacturing tolerances or foreign firmware), any deliberate modification to increase speed beyond the legal limit results in the loss of the operating permit and insurance coverage. Users seeking faster speeds for private property may consider models like the Vmax VX2 Pro or those from brands like Ninebot or Xiaomi, which are often discussed in tuning contexts, but these modifications are illegal for public roads (Source 1, Source 2, Source 3, Source 4, Source 5).